Electronic Expansion Valve Check - Daikin BA-Series Service Manual

Check
5.4

Electronic Expansion Valve Check

Check No.12 Conduct the followings to check the electronic expansion valve (EV).
1. Check if the EV connector is correctly connected to the PCB.
2. Turn the power off and on again, and check if the EV generates a latching sound.
3. If the EV does not generate a latching sound in the above step 2, disconnect the connector
4. Check the continuity between the pins 1 - 6, 3 - 6, 2 - 5, 4 - 5 (between the pins 1 - 6, 2 - 6, 3 - 6,
5. If the continuity is confirmed in step 3, the outdoor unit PCB is faulty
101
and check the continuity using a multimeter.
4 - 6 for the harness 5P models). If there is no continuity between the pins, the EV coil is faulty.
Harness 6P
S20 Check
6P Connector
1 2 3 4 5 6
Harness 5P
1 - 6
3 - 6
S20
6P Connector
2 - 5
4 - 5
1 2 3 4 5 6
(R16385)
SiBE05-722ED
1 - 6
(5)
2 - 6
Check
3 - 6
4 - 6
(R16386)
Service Diagnosis